This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Trying to open Responsive Design View and get this.ResponsiveUIManager is undefined in Browser console

  • 1 svar
  • 1 har dette problemet
  • 2 views
  • Siste svar av John99

more options

If I try to use the Responsive Design View (via Tools menu or via shortcut) then nothing happens.

Looking in the browser console the following error occurs - TypeError: this.ResponsiveUIManager is undefined ResponsiveUI.toggle() - mainUI.js:268 oncommand() - browser.xul:1

running latest version 47.0.1, but this has been a problem for the last 2 versions or so...

If I try to use the Responsive Design View (via Tools menu or via shortcut) then nothing happens. Looking in the browser console the following error occurs - TypeError: this.ResponsiveUIManager is undefined ResponsiveUI.toggle() - mainUI.js:268 oncommand() - browser.xul:1 running latest version 47.0.1, but this has been a problem for the last 2 versions or so...

All Replies (1)

more options

I am not testing on Fx47 on Windows 7 but the Responsive Design View works ok for me.

I should be able to try Windows 7 another day. Maybe you should consider it is possibly a problem on your System and try such things as a new profile and Firefox's safe mode.